<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>登录页面</h1>
<form action="">
    <input type="text" name="username" :value="username" placeholder="用户名">
    <input type="password" name="password" :value="password" placeholder="密码">
    记住用户名和密码:<input type="checkbox" name="rem"><br>
    <input type="button" value="登录" @click="login()">
</form>
<!--引入axios和vue-->
<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
<script>
    let v = new Vue({
        el: "form",
        data: {
            username:"",
            password:""
        },
        methods: {
            login: function () {
                let data = new FormData(document.querySelector("form"));
                axios.post("login", data).then(function (response) {
                    if (response.data == 1) {
                        alert("登录成功!")
                        location.href = "/";
                    } else if (response.data == 2) {
                        alert("用户名不存在!")
                    } else {
                        alert("密码错误!")
                    }
                })
            }
        }
    })

    let cookieArr = document.cookie.split(";");
    for (let str of cookieArr) {
        let arr = str.split("=");
        let name = arr[0].trim();
        let value = arr[1];
        if(name=="username"){
            v.username = value;
        }
        if(name=="password"){
            v.password = value;
        }
    }
</script>
</body>
</html>